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Finding the Fourth Proportional to 121,049.96, 167,042.30 and 66,601.08

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Solution

The fourth proportional to 121,049.96, 167,042.30 and 66,601.08 is: 91,905.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,049.96 : 167,042.30 = 66,601.08 : x
  2. Step 2: Convert to fraction form
    121,049.96/167,042.30 = 66,601.08/x
  3. Step 3: Cross multiply
    121,049.96x = 167,042.30 × 66,601.08
  4. Step 4: Simplify right side
    121,049.96x = 11,125,197,252.68
  5. Step 5: Solve for x
    x = 11,125,197,252.68/121,049.96
  6. Step 6: Final answer
    x = 91,905.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.